October 21, 1.45 a.m.: Updated to fix incorrect links to images in portrait and low-light sections. Some captions were also updated.

Samsung's latest Galaxy Note 4 sports a new design, but it sticks with a well-tested formula that has defined the phablet range of smartphones since its debut three years ago. Packing a Quad HD Super AMOLED display -- that's a super-sharp resolution of 2,560x1,440 pixels -- and the latest Qualcomm Snapdragon 805 processor, the Note 4 is the most advanced smartphone from Samsung yet.

Like the Samsung Galaxy S5 , the Note 4 shares some of the same features -- and more importantly for this article, a 16-megapixel rear-shooter that comes with optical image stabilization (OIS). Like the S5, it features magic focus -- the ability to choose a focal point as well as handy feature that lets you take a selfie with the rear camera.

But with the release of the iPhone 6 and the 6 Plus phablet , Apple has finally gone into big-screen territory, giving Samsung a challenge in the category that the company has been dominating for some time now. The recent LG G3 has also been doing well in Korea, upsetting Samsung's previous dominance there as well.

And take heed -- both LG and Apple have claimed superb camera performance for their devices, and the Note 4 has plenty of challenge to meet. To find out which is better, I took all three phones out for some testing.

How I tested

My testing methodology is pretty standard -- I take three shots with each phone and pick the best of the three for comparison (to rule out hand shake even though all three phones have OIS). I've also tried to frame the pictures similarly, while also keeping in mind the different aspect ratio of the iPhone 6 Plus. I did consider switching the Android phone to a similar aspect ratio, but that resulted in a smaller image, so I kept them at the default.

All pictures were shot with auto-mode as default; the iPhone 6 Plus has auto-HDR and auto flash turned on (except for specific test shots like indoor low-light). The LG G3 also has auto-HDR, and I left it as such (though I did turn it off for non-HDR shots). The Note 4 lacks auto-HDR, so I've manually turned it on when required.

Results

On the whole, the Note 4's camera performed admirably. While it does have some minor issues with white balance (especially under incandescent lighting) and smudging at the far right of the image, the Note 4 holds up well against the competition. Both the iPhone 6 Plus and the G3 have fantastic cameras as well, but Samsung's Note 4 is no slouch, either.

While the larger 16-megapixel sensor does give its pictures a lot more detail, something that the 6 Plus lacks (depending on your shot), the bigger image does suffer from smudged details. There's no clear winner here; all three phone cameras have their strengths and weaknesses. I preferred the Note 4's warmer tones for flash, while the iPhone 6 Plus is a lot more accurate. The LG G3 is a very consistent performer, matching the iPhone 6 Plus shot after shot, while also giving more detail with its 10-megapixel pictures (the 13-megapixel option gives a cropped 4:3 picture).

Check out the images for yourself, and remember, you can click on the pictures to view them in full resolution. Be sure to let us know what you think in our comments section below.

Outdoor test shot (no HDR)

While the images are usually darker without HDR to lighten up darker areas, the Note 4 seems to have made the darker tree trunk on the right much more visible. This comes at the expense of detail, as the markings of the wood are smudged. Given the results, I feel the LG G3 and iPhone 6 Plus does better here, with the camera of both phones capturing the pattern of the trunk without losing detail. I'll call it a tie between both phones here, though the iPhone 6 Plus seems to be more accurate with the darker shading on the right side of the trunk.

Samsung Galaxy Note 4: The trunk on the right lacks detail.
Aloysius Low/CNET
Apple iPhone 6 Plus: The iPhone packs details while also keeping the darker shades of the trunk.
Aloysius Low/CNET
LG G3: The details of the trunk are present.
Aloysius Low/CNET

Outdoor test shot (with HDR)

In this test, the Note 4 seems to do pretty well -- the iPhone 6 Plus' HDR image is still pretty dark compared with what the LG G3 and Note 4 managed to do. I prefer the Note 4's warmer hues, which seem to be more like what I remember of the scene.

Samsung Galaxy Note 4: Of the three I prefer the Note 4's warmer hues.
Aloysius Low/CNET
Apple iPhone 6 Plus: The picture is still pretty dark, though the 6 Plus did activate auto-HDR for this picture. It's slightly brighter than the original, but is still much darker compared with those from the LG G3 and Note 4.
Aloysius Low/CNET
LG G3: The image is brightened considerably instead of being darker due to the bright background.
Aloysius Low/CNET

Outdoor close-up

All three phones do very well here, accurately reproducing the colors and managing to capture the details of the stamen. However, looking closely, it seems the iPhone 6 Plus' picture isn't quite as saturated, while the shots from the Note 4 and G3 have yellows that are a lot more vibrant, but not so much that the pictures look strange.

Samsung Galaxy Note 4: The colors of the stamen are a little more vibrant compared with the shot on the iPhone.
Aloysius Low/CNET
Apple iPhone 6 Plus: There also appears to be more detail on the petals compared with the other shots.
Aloysius Low/CNET
LG G3: The G3's picture is again the most saturated.
Aloysius Low/CNET

Outdoor test shot (colors)

When it comes to color temperature, Samsung's Note 4 sits in the middle between the iPhone 6 Plus and the LG G3. The LG G3's picture comes with the most saturated colors, while the Note 4 is just slightly more vibrant compared to the iPhone 6 Plus. Between all three photos, it feels like the Note 4 got things just right.

Samsung Galaxy Note 4: The colors seem to pop here.
Aloysius Low/CNET
Apple iPhone 6 Plus: Of the three images, this one comes out the least vibrant, but still accurate to the scene.
Aloysius Low/CNET
LG G3: The colors are a lot more saturated here.
Aloysius Low/CNET

Landscape

In this shot, I noticed a few oddities with the pictures taken by the Note 4. Right on the far right edge, the Merlion statue seems to be very smudged. I suspect this is due to Samsung's aggressive noise-reduction algorithms, which seems to have been liberally applied on the right edges of the picture. I've also noticed this on some of the other outdoor images taken with the Note 4, though I'm guessing this can be fixed with software. If not for this issue, the Note 4 would stand out here. The G3 is a tad too dark, so that leaves the iPhone 6 Plus with the best picture.

Samsung Galaxy Note 4: The Merlion on the far right of the picture seems to be smudged but this is likely a software issue that can be fixed.
Aloysius Low/CNET
Apple iPhone 6 Plus: The iPhone's shot turned out to be the best of the lot.
Aloysius Low/CNET
LG G3: The picture is slightly darker compared with the iPhone's.
Aloysius Low/CNET

Indoor lighting

In this relatively dim tunnel, there's enough light here and there for the camera to work with. The iPhone 6 Plus seems to handle the light exposures well and manages not to blow out the exposed areas, though at the cost of a darker image. On the other hand, the Note 4's and the G3's larger images are able to show the text on the sign clearer, and the colors seem to match the actual scene more. It's a tie between both Android phones this round.

Samsung Galaxy Note 4: The text on the sign is a lot clearer than in the iPhone's picture.
Aloysius Low/CNET
Apple iPhone 6 Plus: The light exposures seem more controlled here, but at the cost of a dimmer picture that doesn't really reflect the actual scene.
Aloysius Low/CNET
LG G3: The colors seem more like the actual scene here and you can easily read the text on the sign.
Aloysius Low/CNET

100 percent crop

At 100 percent crop, you can see just how clear the words on the shots from the Note 4 and G3 are compared with the one from the iPhone 6 Plus. The colors of the Note 4 shot are also warmer, but match the actual scene more. You also get a lot more to see on the Note 4 and G3 images thanks to the larger megapixel count.

Samsung Galaxy Note 4: The larger megapixel count means a bigger image, and the text is definitely clear here.
Aloysius Low/CNET
Apple iPhone 6 Plus: You can barely make out the text, but the lights appear to be more controlled.
Aloysius Low/CNET
LG G3: A closer look at the exit sign and the text.
Aloysius Low/CNET

Indoor portrait

I got the wife to pose for these shots, though she did so pretty reluctantly (as you can probably tell by her forced smiles). The Note 4 seems to be a lot warmer than the iPhone 6 Plus and the G3, possibly due to the camera not adjusting for the yellow light coming from the room behind this wall (to allow the cameras some light to focus on the subject). I feel both the G3 and iPhone 6 Plus have the better pictures, but Samsung's warmer hues actually help it in the next test.

Indoor portrait with flash

While both dual-tone LED flashes of the iPhone 6 Plus and the LG G3 manage to achieve a neutral tone without overexposing the image, the aforementioned warmer hues gives the Note 4 picture a more natural skin tone.

Samsung Galaxy Note 4: The warmer hues do make the picture more natural, but this is probably the result of the phone not handling incandescent lighting well.
Aloysius Low/CNET
Apple iPhone 6 Plus: The dual-tone flash manages a brighter image while still managing to keep skin tones accurate.
Aloysius Low/CNET
LG G3: The dual-tone flash doesn't overexpose the image.
Aloysius Low/CNET

Indoor close-up

Under indoor lighting with sufficient light, all three close-up food photos that I took looked great, though again, the warmer hues of the Note 4 can be seen here -- the picture looks a lot more yellow compared with the iPhone 6 Plus and the G3. It could be that both phones are able to do better white balance under incandescent lighting. The iPhone has the brightest image.

Samsung Galaxy Note 4: The Note 4 does take a good picture, but under incandescent light, the warm hues do show.
Aloysius Low/CNET
Apple iPhone 6 Plus: Like the G3, the iPhone 6 Plus manages to capture details while having a nice depth of field, though the left side seems a little overexposed.
Aloysius Low/CNET
LG G3: Plenty of details in this picture, as well as a pleasing depth of field.
Aloysius Low/CNET

Night shot

I reckon this to be the hardest tests for all three phones despite them having built-in optical image stabilization. There's plenty of lights in the background, but the location was generally dark. Samsung's previous phones (though not the S5) did have some trouble with night shots, but this seems to be better this time around.

The iPhone 6 Plus seems to have done the best here, keeping the bridge properly exposed and generally delivering a cleaner more accurate capture of the scene. The G3 overexposes the bridge, leading to an orange hue.

Samsung Galaxy Note 4: The Note 4 seems to have improved on its night pictures, but loses out to the iPhone.
Aloysius Low/CNET
Apple iPhone 6 Plus: Of the three, the iPhone seems to have gotten the night shot done correctly, without overexposing the bridge.
Aloysius Low/CNET
LG G3: The G3 struggles with this night shot, but manages to capture more light at the bridge, while still managing to retain some detail though the orange hue around the bridge seems off.
Aloysius Low/CNET

Would you like to take a selfie?

My last test is a little strange for me to do, since I'm usually behind the camera, and not in front of it. So bear with my ugly mug a little. On the Note 4, the phone lets you use the heartbeat sensor to take a picture, but I found this a little hard to do due to the size of the phone. I had to stretch my fingers a little, and because there's no physical key to depress, I had to guess where the heartbeat sensor was while still keeping my smile on. That was quite a challenge.

On the iPhone 6 Plus, the front camera automatically takes 10 burst shots, and you can also set a timer of either 3 or 10 seconds to get ready. The burst shots are really useful if you happen to blink or shift a little, fret not -- you can still choose the best shot. As for the G3, you can use a hand gesture to take a picture, or hit the volume down button that's conveniently located at the back.